Question

You are given three digits 7,2 and 9 how many of number formed in are divisible by 3?why?

Answer 1

Ans any combination formed by 2,7,9 will be divisible by 3

Step-by-step explanation:

because to check a divisibility of a number by 3 sum of all digits must be divisible by 3 . For example: 456 - 4+5+6 =15 which is divisible by 3. Hence number 456 is divisible by 3.

Answer 2

6:(279,297,729,792,927,972)

Because the sum of the digits is divisible by 3(divisibility rule of 3)

Ex:279= 2+7+9=18 which is divisible by 3

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